Spindle for ring spinning and like machines



June 29, f w. PRINCE-SMITH SPINDLE FOR RING SPINNING AND LIKE MACHINES vFiled Oct. 29, 1956 2 Sheets-Sheet 1 Fig. I.

A Er 3 E 7 I INVENTOR. WILLIAM v RINCE-SMITH ATTORNEY June 29, 1937. w.PRINCE-SMITH 2,035,611

I 'SPINDLE FOR RING SPINNING AND LIKE MACHINES 4 Filed Oct. 29, 1936 2Sheets-Sheet 2 i F ig. 2.

- INVENTOR. WILLIAM PRINCE'SMITH BY MM ATTORNEY Patented June 29, 1937SPINDLE FOR RING SPINNING AND LIKE MACHINES William Prince-Smith,Keighlcy, England Application October 29, 1936, Serial No. 108,290

In Great Britain April 17, 1936 3 Claims.

centering the spindles with respect to the rings whenever the spindlesare replaced after having been removed from the spindle rail for thecleansing of the working parts from oil residue or dirt; another objectof the invention being to avoid undue wear of the spindles and/or theirbearings by the application of braking pressure.

In ring spinning machines in which the spindles are mounted in solidbolsters it is necessary to remove the spindles from the rail forcleansing purposes and when replacing the spindles in the rail it is adiiiicult matter for an overlooker to set them true with respect to therings, as a consequence of which the cleansing is frequently neglected.

Again, the braking of the spindles, either by raising them axially byapplying pressure against the lower sides of the bottom flanges of thewhorl to force one or other flange of the whorl against a fixedabutment, or by applying lateral pressure to the bottom flange of thewharle, tends, in the one case, to lift the running point of a spindlefrom its seat and consequently to damage the spindle point, and, in theother case, to cause undue wear of the upper annular bearing of aspindle.

Both these disadvantages are overcome by the present invention, to whichend a spindle unit for ring spinning and like machines is positioned andsupported by accommodating the bolster freely in a centricallyadjustable bush secured to the spindle rail, and means are providedwhereby, when it is desired to apply braking pressure to the spindle,thespindle unit is moved bodily axially within said bush in order to bringa rotary part of the unit into contact with a fixed abutment. Theconstruction and arrangement are such that the spindle unit can bewithdrawn bodily from the aforesaid bush and replaced therein withoutdisturbing the correct setting of the spindle.

One constructional embodiment of the invention is illustrated by way ofexamlpe in the accompanying drawings wherein, Figure 1 is a side 5 viewpartly in section, of a spindle unit, Figure 2 is a vertical section ofthe unit, Figure 3 is a detail view, in sectional plan, of part of theunit below the level of the bottom flange of the whorl, the spindle railand the parts located below it 55 being omitted, and Figure 4 is a frontelevation of the spindle unit, the spindle rail being shown in section.

I is the apertured spindle rail in which is carried a bush 2 havingslight clearance (for the purpose of centering the bush with respect tothe corresponding ring on the ring rail, not shewn), the lower end ofthe bush being screwthreaded to receive a nut 3 whereby the bush 2 isfixed or, clamped in position in the rail I.

About a reduced neck integral with the nut 3, a bracket 4 is secured bymeans of a set screw 5, to which bracket a. lever 6, is pivoted at 6Aand is formed with a rounded nose GB.

I is the whorl whereof the lower flange is located below a leather pad 8carried by an abutment member 9 formed with a knob Ill and carriedslidably by a screwed stem ll taking into the head of the bush 2,-atension spring I! being confined between a shoulder within the base orbody of said slidable abutment member 9 and the head of the stem II, andthe forward lower part of the body of the abutment member being formedintegrally with a projection I3 fitting int a corresponding recess I4 inthe head of the bush 2.

I5 is the bolster which fits with sufilcient clearance to enable it toslide axially within the bush 2.

I6 is the spindle blade, I1 the swivel inner sock and I8 the dampingspring, all of which parts are of known construction.

I9 is a pin projection from the upper part of the bolster l5 and whichis receivable in a slot formed in the upper edge of the bush 2 and whichserves to locate the bolster in respect thereto.

It will be observed that by constructing the spindle unit so that thebolster I5 is slidable axially in relation to the fixed and centred bush2 carried by the spindle rail I, primarily any spindle unit can easilybe removed for cleaning purposes and re-inserted without disturbing itsaxial adjustment with respect to its corresponding ring, and secondly,the braking of the spindle can be effected without detriment totherunning point of the spindle and without applying lateral thrust tothe spindle bearing.

The braking of the spindle is caused by the application of pressure froman operatives knee against the front of the pivoted lever B whereof therounded head 63 thereupon forces the bolster l5 axially upwards withinthe'bush 2 carrying with it the entire spindle unit bodily until thelower flange of the whorl I is brought into contact with thelpad l onthe abutment member 9 whereby the rotation of the spindle is arrested.

This abutment member 9 serves a dual purpose in that besides its brakingfunction itvalso prevents a spindle being lifted out of position in theevent of a tightly fitting bobbin being drawn of! a spindle.

When it is desired to withdraw a spindle unit for the purpose ofcleansing, or the spindle blade for the purpose of adding lubricant, theknob in of the abutment member 9 is gripped by the operative and themember I is pulled outwardly against the pressure of the spring I! untilthe pad I is beyond the periphery of the lower flange ot the whorl 1,whereupon the entire spindle unit can be withdrawn bodily from the bush2 and dealt with as required.

Conversely, to replace a spindle unit, the member is slid outwardly andthe unit is dropped into the bush 2 in such a position that the pin i8falls into the slot 20, after which the member 9 is released and isreturned inwardly by the spring II, the projection IS on the base orbody of the member 9 making sliding contact with the upper face of therecess I4 and taking any upward thrust during both the outward andinward sliding movement 0! the member 9 and thereby avoiding upwardpressure on the screwed stem II when the brake is operated.

By the herelnbefore described construction of spindle mounting, aspindle may be lifted out of position without necessitating themanipulation of any nuts or screws, cleaned, and replaced withoutdisturbing its correct setting.

What I claim is:-

1. In ring spinning and like machines including an apertured spindlerail and an apertured ring rail, a spindle, a flanged driving whorl onsaid spindle, a bolster wherein said spindle rotates, a bush secured inan aperture in said spindie, said bush being adjustable centrically withrespect to the corresponding aperture in said ring rail, and saidbolster being slidable axially within said bush, means hinged below saidspindle rail to raise said bolster axially within said bush, and aspindle-braking device including a stationary abutment member, having aresilient brakepad located in the path of axial movement of said flangeddriving whorl and serving to arrest rotation of said spindle when saidbolster is raised.

2. The combination with ring spinning and like machines having a spindlerail, a bush mounted therein, a bolster removably supported in said bushand a spindle whorl rotatably supported upon said bolster, 01' a brakenormally extending in the path of travel of said spindle whorl forpreventing the removal of said bolster from said bush and adapted attimes to exert a braking action upon said spindle whorl, a support forsaid brake detachably connected to said bush, means [or normallyretaining said support in locking engagement with said bush, andmanually operable means for moving said brake out of the path of travelof said spindle whorl whereby said bolster and said spindle whorlcarried thereby may be removed from said'bush.

3. The combination with ring spinning and like machines having a spindlerail, a bush adjustably mounted within said spindle rail, a locking nutfor said bush, a bolster removably supported in said bush, a spindlewhorl rotatably supported upon said bolster, a bracket detachablyconnected to said locking nut, a lever pivotally connected to saidbracket and at times having engagement with said bolster for moving thelatter within said bush, a brake for said spindle whorl, a support forsaid brake, a set screw for detachably connecting said brake supportwith said bush, and resilient means for normally retaining said brakewithin the path of travel of said spindle whorl and retaining said brakesupport in looking engagement with said bush.

WILLIAM PRINCE-SMITH.

